Egg carton



P. BERKEY EGG 'CARTON Filed sept. '28. 192s imy Patented Oct. 14, 1924.

PETER BERKEY, 0F CHICAGO, ILLINOIS.

EGG CARTON.

Application filed September 28, 1923. Serial N o. 665,292.

To all whom t may concern:

Be it known that I, PETER BERKEY, a citizen of the United States,residing at Chi cago, county of Cook` State of llinois, have invented acertain new and useful mprovement in Egg Cartons, and declare the following to be a full, clear, and exact description of the same, such aswill enable others skilled in the art to which it pertains to make anduse the same, reference being had to the accompanying drawing, whichforms a part of this specification.

Cellular cartons for packaging small quantities of eggs are usually madeof light material, for the purpose of reducing their cost. The result isthat the cartons are not very rigid, but yield more or less during theprocess of handling them. In the most common type of egg carton thecells are formed by means of transverse partitions and a singlelongitudinal partition suitably interlockedwith the latter; thelongitudinal partition being made out of the same material as theremainder of the carton.

The object of thepresent invention is to stiifen and reinforce cartonsof the kind described, without adding any considerable amount to thecost of the same and without requiring any alteration in theconstruction of the main portion of the cartons. In carrying out myinvention, stiffen the longitudinal partition, thereby strengthening andreinforcing the entire carton. This is conveniently accomplished bymaking the partition member out of a blank of twice the width or depthof the ordinary partition, and folding the blank along its longitudinalcenter line. This construction lends itself readily to the strengtheningof the carton in another way. Thus, in the common form of carton inwhich the body member and transverse partitions are made out of a singlesheet, the transverse partitions being secured only at their uppercorners to the front and rear walls, there are no end walls, as such,but the two end partitions serve as end walls. Consequently, the eectiveend walls of a carton of this kind are fastened only at two corners andare not braced by being attached at three edges to the bottom and frontand rear walls. My improved longitudinal partition may conveniently bemade much longer than the length of the carton and have its endsfashioned into sections which may be bent laterally into engagement withthe front and rear walls of the carton and thus form actual end wallsfor the carton.

Viewed in one of its aspects, my invention may therefore be said to havefor its ob-y ject to produce a simple and novel cellular carton in whichthe end wallsy are formed` out of the same material as, or are connectedto a detachable longitudinal partition.

The various features of novelty whereby my invention is characterizedwill hereinafter be pointed out with particularity in the claims; butfor a full understanding of rmy invention and of its objects andadvanviewing my invention in certain of itsy aspects, the carton shouldtake this form; however, certain of the features of my invention areapplicable to cartons otherwise ,constructed, as will be understood fromthe following description.

Referring to the drawing, 1, 2 and 3 represent respectively the front,back and bottom wall of a carton and 4 is the cover member of the same.5 is a locking strip on the free long edge of the cover. The transversepartitions are indicated at 6, each being connected at its front uppercorner, as indicated at 7, to the upper edge of the front wall of thecarton, and being similarly connected at its upper rear corners, asindicated at 8, to a strip 9 which is fastened to the back side of thecarton. All of the parts heretofore described are made out of a singlepiece so that when the transverse parvertical.v positions, as shown inlthedraiving,

and hold the carton expanded. lliach-trans-l verse partition isprovided. Witha deep\ver.ti, cal notch extending downwardly through the.f upper edge at the middle, for the reception;

of a longitudinal partition, Which should be provided with similarnotchesextendingtup Wardly through the bottom edge thereol'.

In accordance-with my invention .l lform` -i theslongitudinal partitionout oi' arblankzl'l havingf twicefthe .avidth L orfdepthi .ot the de-..1sired partitions andal creasehthis .blank along` `the longitudinal.center, as indicated.

fao-12.? The notches :are produced by cutting.y slots 13 and 14: in theblank; these slots er@` tending transgversely of'. and across the-creaseandibeng: spaced. apart :from .each .other to. conformft'o theespacingotfthe ltransverse. partitions.. Itwvill .beuseen that Whenvt-hebl'ankhisfolded alongtheline otgthecrease, the slotsare transformed intonotches. which4 openxout! through .the 'folded `ledge.l oifthe blankgsothat the.lpartition.may Lbeinserted ini-,thecantonin the rsame .Wav asan or. dinarzy .longitudinal partition` However,v sincethelongitudinal-.partition is of double thickness, it: serves as`abaclrbone .or stiften.

ing piece .for the. entire carton.V

partitionistobe. appliedltoia cartonA of the style" illustrated, and.-itV is desired. to formV entlfwallston the.. carton, the blank .outvofwhich thepartitioniis made .is provided .With :i

endextensinses shown., '.Ihereis an eXf-. tensionat eachlv end oftheblank, these extensions being dividedfbyfbeing slitealong lines.=15fthataare continuations of 'the line ofthe crease k12 ,-1 thevvidth `ol"the vextension-s being equal totwice .the height that the lendWallsrshouldf ihave, and -their lengths, .bei-ng somewhat 1greater-,than .onehalf' f the. .length of. yan .end Wall.E The ends `of.the ypartition proper are defined by. transverse creases 16,l

other creases-17, parallel with vand 1 spaced lapart from thecreasesl61a distanceV equal to one `halif the- Width ofl the carton,divide .eachdeX-tension.. into end. Walll sections andalockingflaps;there being at. eachend oi:` the Iblank 'tvv/'o end sections 18,.-.each4provided vvvith a flap 19.

' In assembling this; partition .in the4 carton, the partition.V isfirst; :folded alongv the .longify tudnalacenter, the end. sectionsarebent. latfv erallyy-inopposite directions,.and the iiaps 19 are` thenibent inwardly at. rightangles :to the end-.lseetionsw The `flaps passbetween@ the.

vertical.- edgesnot theftwo endmosttrans.

verse; partitions andthe frontand rear Walls ot th,e.;carton,-. eachpair .of end sectionsmco! operatingto form a substantially continuousend Wall resting at its lower edge on the bottom of the carton andhaving what may be termed flanged sides Which engage With theinnenfaces. of the rontvand rearvvalls andflfare Apressed againstthelattenbyy the corresponding transverse partitions.

lt Will. thus beseen that I have produced asimple means for stiifeningegg cartons of'. anytype having detachable longitudinal partitions and,furthermore, for forming companatively .-stronggsti end Walls for suchcartons as have heretofore had no actual Yend Walls:Without:necessitating any-'change i inthe constrnctioniof fthemainlpontionssor 'bodies of thelfcartona-by simply changing.;

.. theformi. of; the detachable longitudinal partition..

`While I have f illustrated. 1 and.; described...

' with particularit-y only i a ..,single;..=preferre il.` formo-f myinvention, Ii'do not :desire Vto be.. vlimitedfto` the .i exactastructural details :thusv Aillustrated and` described; but,;intendfjfto.;., cover-. all forms..` .and arrangementsi"r whichs. comeWithin the terms-.employed in.: the

definitions ot' my invention.'constitutingithe appended claims..-

I claim.: 1 1. A7 carton having ing throughout the length of the .carton:ando Where it :isf-desired that the Jongitudinalx suitably`interloclred With the. transverse para;

titions, saidy l:longitudinal4k partitioniy having y front .and rearWalls, transverseipartitions.-

.f extendingbetween theV 'front and .rear `vvalls52 a longitudinal:partition f extending through-1l outV the length .fot sthe.. carton; and'suitably 1 interlo'cled with` .the transverse partitions; .av

1 said. longitudinal; partition .havingf atnits 11 ends. sections!forming-.end .Wallsnfor .thea .can-,f ton,ueachfof saidend sections:havingiaap engaged. With .and lying parallele to the leere responding'frontorrear Wall of-theartoiief A. Vcarton lihaving -'a bott-om:: Wallandefront and rear. `Walls', transverse 'zpartiti'onsx attached. onlyAat: their. upperucorners ito-thei-.f

front and rear Walls, alongitudinal pal-*tie` l tion suitablyinterlocked-With thetransversev partition, vsaid longitudinalpartitionhawing'- :y at the ends.laterally-extending.sections.fornn ingv endfvvalls` for-.the carton,` each-of said` sections having a flapengagedwith oneztotr the .front or rear. Walls andlying between the sameand an edgegof oneof vvthe transe.

verse partitions. v

.egg cartons comprisinga bla-nkcreaSed-alo lines forming continuatons ofsaid crease; said blank having slots cut into the saine said blankhaving slots cut into the same transversely of and across the crease,and 10 transversely of and across the crease. there being a creaseextending transversely 5. A longitudinal partition member for of eachslitted portion of the blank near the 5 egg cartons comprising a blankcreased along outer end of such slitted portion.

the longitudinal center throughout the mid- In testimony whereof, I signthis specidle portion and slitted at the ends along cation. linesforming eontinuations of said crease; PETER BERKEY.

